Fluid actuated rolled forming machine



Dec. 5, 1939. J. D. KREIS HAL 2,182,401

FLUID ACTUA'I'ED ROLLED FORMING MACHINE Filed April 1:5, 1936 '5Sheets-Sheet 1 INVENT BY w/ Jose oiz flKmia.

Dec. 5, 1939. J. D. KREIS Err AL FLUID ACTUATED ROLLED FQRMING MACHINEFiled April 13, 1936 3 Sheets-sheet 2 INVENTORS.

Ki'iflta [15mm WM g r? 61 5. g TORNEY. a

Dec. 5, 1939 ,J. D. KREIS ET AL FLUID ACTUATED ROLLED FORMING MACHINEFiled April 13, 1936 3 Sheets-Sheet 3 INVENTO flwmwfl lfw BY & Joseph 0,H613. ATTORNEY.

Patented Dec. 5, 1939 PATENT OFFICE FLUID ACTUATED ROLLED FORMINGMACHINE Joseph D. Kreis and Elsmere W. McKinney, Cleveland, Ohio,assignors to The McKinney Tool and Manufacturing Company, Cleveland,Ohio,

a corporation of Ohio Application April 13, 1936, Serial No. 74,150

15 calms.

Our invention relates to rolling'and beading machines and moreespecially to rolling and beading'machines for rolling the bead in avessel or tub.

An object of our invention is to provide a machine for rolling the heador otherwise forming the edge of a vessel or tub.

Another object is to provide means for applying hydraulic pressure to avessel to be shaped and for rotating the vessel as it is being shaped.

Another object is to provide a reciprocating tooling member adapted toengage the vessel against/a mating tooling member mounted to astationary support.

A still further object is to provide a reciprocating tooling memberadapted to move forward rapidly toward the vessel to be shaped and thento move forward relatively slowly while pressure is applied to saidvessel, and to move back into inoperative position at a rapid rate afterthe vessel is formed.

Another object is to provide a holding member for holding the vesselwhile it is being formed, the operation of the holding member beingresponsive to the movement of the reciprocating tooling member.

A still further object isto provide work guide members for guiding thevessel to be formed, the operation of the work guiding members beingresponsive to the movement of the holding member and to the movement ofthe reciprocating tooling member.

Other objects and a fuller understanding may be had by referring to thefollowing description and claims, taken in conjunction with theaccompanying drawings, in which:

Figure 1 is a side view of my machine,

Figure 2 is a diagrammatical view of my machine showing the operativeparts and their corelationship,

Figure 3 is a left hand view of the illustration shown in Figure 1,

Figure 4 shows in detail the mounting of the parts of the cam assembly,

Figure 5 is a view taken through the line 5-5 of Figure 4,

Figure 6 is a fragmentary showing of a view looking down on theillustration of Figure 4, and

Figure 7 is a view taken along the line 5-? of Figure 3.

Referring to our figures, our invention includes a frame ill, astationary member 23, a platform 85, a reciprocating member 25, a camassembly H8, a valve assembly I80, a motor 21, rotating the handle 89.

tooling members 39 and 49, and a piston 58 for actuating thereciprocating member 25.

In reference to Figure 1, we provide the frame- Elt with two doors 2|and 22 for access to the inner mechanism. The lift hooks 2t and 26 aresuitably mounted upon the frame 20 for placement of the frame 26. Thestationary member 28 carries the tooling member 39 while thereciproosting member 26 carries the tooling member is.

The nature of our invention is better understood by referring to thediagrammatical showing of Figure 2. The electric motor 2?, controlled bythe switch 2%, drives the variable speed transmission 29, which'iscontrolled by the turning of The power of the motor Z'lv through thevariable speed transmission it drives the shaft 32, the elongated gear38, the extension shaft 34, and the worm gear 36. The regulation of thevariable speed transmission 29 is indicated on the outside of the frame2t by the indicator ii. The rotation of the worm gear 35 rotates thegear at, which in turn rotates the shaft 38. The shaft 38 is carried bythe bearing members 37 and 60, which bearing members are mounted uponthe stationary member 23 (see Figure 1). Nonrotativelymounted upon theshaft 88 at the desired elevation is the female tooling member 39 whichrotates as the shaft 38 rotates.

The gear 53 is engaged in the elongated gear 33 so as to rotate withthat gear. The gear 43 rotates the shaft 44 and the worm gear 45, thusrotating the gear 46 enmeshed with the worm gear 48. The rotation of thegear 46 turns the shaft 48 and the male tooling member lfl which isnon-rotatively mounted thereon, so that the rotation of the gear 48turns the tooling member 69. The vessel or tub 42 is shown in formingposition between the rotating tooling members 39 and 49.

The shaft 48 is carried by the bearing mem bars 41 and 5B.

The supporting arm Bl supports the bearing members 41 and 50 which carrythe shaft 48 and the tooling member 49. The reciprocating member 26shown in Figure 1 is mounted upon and carried by the supporting arm Blshown in Figure 2. The nut 52 secures the supporting arm ii to thepiston stem 53 of the piston 58. The piston 58 is enclosed within thepiston chamber 55, with the piston stem 53 extending therefrom, throughthe packing 59 and the. packing ring 54. The air valves 56 and 61 uponthe piston chamber permits air caught in the piston chamber to be drawnoil. It is readily seen that movement of the piston 58 within the pistonchamber 55 causes the supporting'arm III to reciprocate the toolingmember 49 back and forth,

as the position of the piston within the piston chamber 55 is changed.It is also seen that the gear 43 is enmeshed with the elongated gear 33;

at all times during the reciprocating movement.

The cam assembly II8 is mounted upon the lower part of the supportingarm 5| and extends back parallel to the'piston stem 53. The, cam rollerI20 rotatively mounted upon the end of the connecting rod I2I is somounted as to ride along the contour of the cam assembly 8.

Figure 2 shows in dotted lines, the contour of the cam assembly whichthe cam roller I20 follows. It is seen that the whole cam assembly II 8is reciprocated with the supporting arm 5Ij so that the position of thecam roller I20 is accordingly changed, as it rides up and down over 1the irregular contour of the cam assembly outline. This movement of. thecam roller I is translated to the connecting rod I2I so that thevertical movement of the connecting rod I2I is responsive to thehorizontal movement of the cam assembly II8.

Figures 4, 5, and 6 illustrate in detail the assembly of the camassembly H8 and show that; it is made up of a plurality of platesormembers I09, IIO, III, H2, and H3. These members are.

all mounted upon the back plate I08 by means plate I08. The graduatedscale II9 is connected to the back plate I08, so that the whole camassembly may be accurately set with relationship with the scale I I1shown in Figures 1 and 5.

Figure 5 is a cross-section taken through the line 55 of Figure 4 andshows the cam roller I20 riding upon the member I09. The set screw H6 inthe elongated slot I06 clamps the scale ,I I1 to plate I08 in thedesired position. v Figure 6 is a view looking down upon the view shownin Figure 4, and shows the same parts as in Figure 4 with portions cutaway. I In reference again to Figure 2, the'conne'cting. rod I2I isrestrained downwardly'by the spring I32 anchored to the frame. Theconnecting rod I2I has teeth so as to form a rack which is enmeshed withthe pinion I22. The rotation of the pinion I 22 by reason of the rackingmovement of the connecting rod I2I rotates the control member I24. Inthe event of an emergency,the control member, I24 may be de-clutched bythrowing the handle I25 to the left, and the valve assembly I90 may bemanually operated by moving the handle I25 up and down Extendingradially from the control member I24 is the arm I26, which is moved bythe rotation of the shaft I23. The rod I21 is pivotally connected to thearm I26, and the rod I33 is pivotally connected to the lever arm I29.Mounted upon the rods I21 and I 33 and intermediate thereof is a springassembly I28, which acts as a shock absorber for any sudden or violentmovement of rod I21 and rod I33 relative to each other. The samemovements between the relative parts is obtained, but all Jerking andsudden action is eliminatedby the resiliency of the spring assembly I28.

The lever arm I29 is pivotally mountedto the thus operating the valveassembly known generally by the reference character I90.

It is seen by referring to all the drawings, particularly thediagrammatical drawing of Figure 2, that the reciprocation of thereciprocating member 24 on the supporting arm 5| causes a movement ofthe cam roller I20 which is translated through the connecting rod I2I tothe shaft I23 and then through the control member I24 to the lever armI29, and to the piston I12, thus controlling the operation of the valveassembly I90.

The tub 42 is held down in position while being formed by the holder 66which has a projection 61 adapted to be inserted into a hole in thecenter of the tub 42. A holder arm 68 supports the holder 66 and ismounted to the cylinder 10 by the bracket fastening 69. A supporting rod65 is mounted within the center opening of the cylinder 10 and has itsbottom'end mounted to the piston 15. There are two spiral grooves II inthe peripheral portion of the supporting rod 65 in which the .pins 12are slidably engaged. Relative movement between the cylinder 10 and thesupporting rod 65 causes a rotary movement between the cylinder 10 andthe supporting rod 65 by reason of the actionof the pins 12 in thespiral grooves H. An expansive coil spring 13 within the cylinder 10'around the supportingshaft 65 by pressing against the shoulder'withinthe cylinder 10 and the piston 15 tends to push the cylinder 10 and theholding arm 68 in an upward direction. The piston 15 is permanentlymounted to the piston stem 16 which protrudes out of the cylinder 10through the packing 19 and the packing ring 80. The arm 8| protrudingfrom the frame 20 securely holds the piston stem 16 in a permanentposition. An elongated gear or pinion 14 mounted on the cylinder 10 isenmeshed with the rack member 89 so that rotation of the cylinder 10 andthe gear or pinion 14 causes a horizontal movement of the rack member89.

The filling of the chamber 11 within the cylinder 10 by introducingfluid through the opening 18 in the piston stem 16 will force thecylinder 10 downwardly as the piston 15 is permanently positioned byreason of the mounting of the piston stem 16 on the arm 8|. The pressureof the fluid in the chamber 11 tends to counteract the action of thecoil spring 13 and thus to pull the cylinder 10, and the holder arm 68downwardly and to turn the arm 68 by the action of the pins 12 in thegrooves 1I.

The illustration in Figure 2 being diagrammatical does not show theguide members 9| and that the rolling action of the rollers facilitatesthe easy rotation of the tub 42 between the rotating tooling members 09and 40. To properly guide the tub 42 while it is being formed, weprovide the guide rollers and 00 mounted upon the reciprocating members09 and 00 respectively. The bottom of each guide roller N and 00 isflanged out to form the flange portions 02 and 00 respectively, uponwhich flange portions the tub 42 rides as it is gauged by the guiderollers 0i and 00. The reciprocating member 00 has an elongated slot 90and the reciprocating member 00 has an elongated slot 94, in which slotsride respective pins mounted to the platform 00 so that thereciprocating member 00 and 00 are reciprocatedly mounted to theplatform 00. One side of the reciprocating member 90 has teeth to form arack, which rack is engaged with the teeth of the elongated gear orpinion 14 around the cylinder 10, which supports the holding arm 08 andholding member 00. Therefore, rotation of the elongated gear 74 causes areciprocating movement of the reciprocating member 00. A long rod 91extends inwardly from the reciprocating member 09 and a short arm I00extends iriwardly from the reciprocating member00. These arms 9! and I00are joined at their inner ends by pivotal mounting to the end of thearms of the bell crank 00, which bell crank 90 is pivotally mounted bythe pivotal mounting 09 to the platform 85. The relation 'of the partsis such that a reciprocating movement of the reciprocating member 09 istranslated by the arms and the bell crank to the reciprocating member 90so as to move the reciprocating member 90 inwardly to the same extentthat reciprocating member 09 is moved inwardly, and to move. thereciprocating member 90 outwardly to the same extent that thereciprocating member 00 is moved outwardly. Therefore, inward andoutward movement of the guide roller 9I is duplicated by movement of theguide roller 00- In this way, the tub 42 is properly held in formingposition andv guided by the guide rollers or guide members 9| and 90.

Figure 3 illustrates the manner in which the platform 80 may be adaptedfor different uses by raising and lowering the platform 80 relative tothe frame 20. A long threaded rod I00 extends down through the end ofthe frame 20 and stationary member 20 and is threadably engaged in thethreaded hole I00 in the platform 00. The platform 86 islowered orraised relative to the frame 20 by the turning of the threaded rod I00by means of a wrench or crank upon the squared end I00 of the threadedrod I04. The thread of the threaded rod I04 engaging the threads of thethreaded hole I05 in the platform 05 acts to Jack the platform up anddown upon the frame 20.

Referring to Figure 2, to operate the piston 09 in the piston chamber 00and to operate the piston It in the cylinder I0, we provide a fluidsystem, the fluid in the system being driven by a gear pump I31 and arotary sliding vane pump I09. The pumps I07 and I00 are driven by themotor 21 through the shaft I10. The operation of the fluid system andits control arev described in the following manner:

Beginning with the cam roller I in position C upon the cam assembly H0,the machine is ready to proceed at a feed forward operation, that is,the piston 08 is to apply a thousand pounds pressure upon the tub beingformed between the tooling members 09 and 40. The cam roller I20 movesfrom position C to D during the initial step of the feed forwardoperation. In order to continue the operation while the entirecircumference of the tub is pressed, it is necessary to keep the camroller I20 on level 0-D until the tub is fully formed. The cam roller isheld up and restrained from falling into position E by the action of thedelaying mechanism IOI until the ,proper period of time has elapsed. Thefeed forward operation continues while the cam roller I20 is on thelevel C-D. While moving from position C to position D and while on thatlevel, the cam roller I20 so controls the movement of the piston I12 andthe piston stem ill in the piston chamber I00 of the control valveassembly I00 that the respective ports in the piston chamber I00 areopened and closed in such a manner that the fluid in the fluid systempursues the following course.

The fluid in the sump I00 is pumped up the pipe I00 by the gear pumpI01, through the pipe I00 to the rotary sliding vane pump I00 where itis put under the required pressure and controlled by the operation ofthe volume'control I40, which by changing the centrifugal center pumpI00 obtains the desired pressure action. From there the fluid goesthrough pipe I, pipe I52, to within the piston chamber I09 and outthrough the pipe I02. Thefluid in pipe I02 divides so that part of itsgoes through the pipe I00 and is delivered tothe rearward chamber I02within the piston chamber 00, and thus drives the piston 00 forward byreason of the pressure of the fluid. Another part of the fluid in thepipe I02 is diverted through pipe I03 up through the opening I8 in thepiston stem 19 into the chamber I? of the cylinder 10. The pressure ofthe fluid in the chamber I1 presses the cylinder I0 downwardly andovercomes the action of the coil spring I3 so as to bring the holder arm00 downward, and to swing it into position over the tub 42 by reason ofthe action of the pins I2 in the spiral grooves II. The thousand poundspressure built up in the rearward chamber I92 within the chamber 00, bythe pump action of the pump I39,'presses the piston 09 forwardly, withinthe piston chamber 50 and so presses and forms the tub 02 be.- tween therotating tooling members 00 and 09. The fluid already in the forwardchamber IOI of the piston chamber 00 is pressed out by reason of theforward action of the piston 09 and the fluid in the forward chamber I9Iflows out pipe I57 back into the interior of the valve assembly I90,

1 and then out again through the pipe I50 and the pressure relief valveI00, which pressure relief valve I00 is set at 100 pounds, and then outthrough the pipe I44 back into the sump I05.

As the piston 00 presses forward within the piston chamber 00, thepressure in the rearward chamber I92 builds up to a thousand poundpressure due to the resistance of the tub 02. However, the pressure doesnot exceed 1000 pounds because of the releasing action of the pressurerelease valve I42, which when overcome by any excess pressure drainsoil! fluid to reduce the pressure to 1000 pounds through the outletpipes I40 and I44 back in the sump I00. At the same time that the fluidis being pumped into the rearward chamber I02, of the piston chamber 00,the fluid ,of the pump I00 is also being pumped through another coursewhich is as follows: The fluid from the pump I09 goes through the pipe Ithrough pipe I02 within the valve assembly I00 out through the left handport of the pipe I58 and in'again through the right hand portof the pipeI00 to within the valve assembly I90, and out through the pipe I00, andup into the small chamthrough the registered openings out through thepipe IBI, and down into the sump I35. By reason of the smallness of theopenings I81 and I88, .only a limited amount of fluid may escape throughthe pipe NH, and thus a predetermined amount of time is consumed indraining the chamber I98. As the capacity of the chamber I93 may beadjusted by the turning of the set screw I83, the

too

time of the delaying action of the whole delaying mechanism I8I may bepredetermined.

It is to be noted that the cam roller I20 would tend to move down fromposition D to position E, thus moving the connecting rod I2I downwardlyand to move the piston stem I'II to the extreme right. However, as shownin Figure 2, this movement to the right of the piston stem I1I is lockedby the position of the cam member I19. This blocking of the movement tothe right of the piston stem I1I holds the cam roller I20 up intoposition D instead of allowing it to fall down into position E. I As thefluid in the chamber I93 is slowly drained out through the pipe I6I, thepressure of the fluid against, the coil spring I84 is diminished so thatthe coil spring presses the cupshaped piston I82 downwardly, within thedelaying mechanism IBI. Upon the draining of the fluid within thechamber I93, the piston I82 presses down upon the pin I18 which pin inturn presses against the finger member I80 to overcome the tension ofthe small spring I8I. The downward movement of the finger member I80causes the cam member I19 to rotate a partial turn, thus permitting thepiston stem "I to move in a direction to the right.

The rightward movement of the piston stem I1I bringsthe cam roller I20down into position E where the rapid traverse reverse operation isinstituted. In the rapid traverse reverse operation,

the piston 58 is moved back rapidly within the piston chamber 55 so asto withdraw the tooling member 49 away from the tub 42 at a relativelyfast rate of speed. The course of the fluid in-the fluid system duringthe rapid traverse reverse operation, that is when the cam member I20goes from position E to position A, is as follows: The fluid is pumpedby the pump I31 through the pipe I38, part of which fluid flows throughthe pipe I45 and the pressure relief valve I46, which pressure reliefvalve is set 'at 300 pounds pressure, thence to within the valveassembly I90, out through the pipe I53 and the pressure relief valveI54, which pressure relief valve is set at pounds pressure, out throughthe outlet pipe I44 and back into the sump I35. Other parts of the fluidpumped by the pump I31 through the pipe I39 flows through the pipe I49to within the valve assembly and out again through the pipe I41 whichpipe carries the fluid up into the forward chamber I9I within the pistonchamber 55, thus forcing the piston 58 back through the piston chamber55 at a relatively rapid rate of speed. Another portion of the fluidpumped by the pump I31 through the pipe I38 is carried to the pump I39,from whence it flows through the pipe MI and the pipe I 52 to within thevalve assembly I90 where it is by-passed to the other end of the valveassembly by the pipe I58 and then flows through the pump I51 and then upinto the forward chamber I9I and also presses the piston 58 backwardlythrough the piston chamber at a relatively rapid rate of speed.

As the piston 58 is move'db'ackwardly in the piston chamber 55, thefluid in the rearward chamber I92 is drained out through pipe I64, up

through pipe I62, to within the valve assembly I90, outwardly throughthe pipe I53 and the pressure relief valve I54, which pressure reliefvalve is set at 10 pounds pressure, and then through the outlet pipe I44back into the sump I35.

At the same time that rearward chamber I92 is being drained, the fluidwithin the chamber" of the cylinder 10 is drained out through the pipeI83, up through the pipe I62, to within the valve assembly I90, thenceoutwardly through the pipe I53, and the pressure relief valve I54, whichpressure relief valve is set at 10 pounds pressure, and outthrough theoutlet pipe I44 back into the sump I35. The action of the coil spring 13within the cylinder 10 raises the holder arm 68 and swings it around bythe action of the pins 12 7 within the spiral grooves H. The turning ofthe cylinder 10 and the elongated gear 14 causes the guide rollers M and95 to move outwardly upon the platform 85 away from the tub 42.

After the'completion of the above described circuit of the fluid andmovement of the members, the cam roller I20 has moved to position Awhich is a neutral position. When in this neutral position, the fluidpumped by the pump I31 is carried in the following manner: Part of thefluid from thepump I31 is carried through the pipe I38, through the pumpI39, through the pipe I4I, through the pipe I52, to within the valveassembly I90, then out through the pipe I53; through the pressure reliefvalve I54, which pressure relief valve I54 is set at 10 pounds pressure,and outwardly through the outlet pipe I44 back in the sump I35. Anotherportion of the fluid is carried through the pipe I38, down through thepipe I49 to within the valve assembly I90, from whence it is carriedthrough a longitudinal hole I13 extending through the piston I12 up tothe right hand end of the valve assembly to the right hand end chamberI94, thence through the pipe I41 and the pipe I48 back to within thevalve assembly I90, thence out again through the pipe I53, and thepressure relief valve I54, thence out through the outlet pipe I44, backinto the sump I35. The fluid within the pipe I51 is trapped through thevalve assembly and the pressure relief valve I56 and the fluid in pipeI64 is trapped through pipe I62, the valve assembly I90, and thepressure relief valve I54.

, As stated, it is while in this position that fluid flows through thelongitudinal hole I13 in the piston I12 out intothe right hand endchamber I94. A portion of this fluid in the fluid chamber I 94 flowsthrough the pipe I60 and fills up the chamber I93 of the delayingmechanism I8I. This fluid in the chamber I93 raises the cupshaped pistonI82 up against the spring I84 and again permits the pin- I18 to pushupwardly by reason of the movement of the finger I80'upon itsv bottomend. The tension of the spring I8I turns the cam member I19 up intoposition for blocking the rightward movement of the piston stem I1I. Inthis way, the delaying mechanism I8I" is again set ready for the nextfeed forward operation.

The next successive operation is the rapid traverse forward of the"piston 58 so as to bring the I20 from position A to position B, and sothatit is ready to ride the upper contour of the cam assembly H8.However, prior to the raising of the handle i20, the tub 42 is placed inproper position for rolling upon the platform 80, ready for forming.

The course of the fluid during the rapid traverse for'wardbperation isas follows: The fluid pumped by the pump I01 is carried through the pipeI50. A portion of this-fluid is carried to the pump tilt, through thepipe HI, through the pipe 532, inwardly oi the valve assembly 690,thence out through the pipe I02, through the pipe its, to the rearwardchamber i92 of the piston chamber 55, exerting a force upon the piston58 pushing it forward at a relatively rapid rate of speed. Anotherportion of the fluid flows from the pipe iiit through the pipe its,through the pressure relief valve I658, which pressure relief valve isset at 300 pounds pressure, thence inwardly of the valve assembly 690,thence out through the pipe i553, through the pressure relief valve set,which pressurerelief valve is set at a 10 pound pressure, and outthrough the outlet pipe ass back into the sump ass. Another portion ofthe fluid in the pipe E28 flows through the pipe its to within the valveassembly 6% and thence out through the pipe 56d and up into the rearwardchamber i922 of the piston chamber tit, so as to apply pressure upon thepiston its press= ing it forward within the piston chamber as.

During this rapid traverse forward operation the fluid in the forwardchamber iti is drained out through pipe 557 back to within the valve as=sembly let, thence out through pipe i553, through the pressure reliefvalve I5 3, which pressure relief valve is set at 10 pounds pressure,thence out through the outlet pipe its back into the sump fist.

The cam roller use during this operation has moved along the uppercontour of this cam assembly M8 until it falls down into position C,thus changing the relative position of the parts of the valve assemblyltd. ready for the feed forward op eration, which feed forward operationwas de= scribed as the first operation herein.

In addition to the fluid system described above, we provide a pressureindicator it? which is in communication with pipe I66 by means of thepipe Its. A valve I85 is provided upon the pipe I85 for controlling theflow of fluid to the pressure indicator lei.

The pressure relief valve I42 set at 1000 pounds pressure is providedfor the purpose of limiting a maximum pressure applied upon the tub 42being formed to the 1000 pounds provided therewith.

The volume of the pump I39 is controlled by the volume control M whichby shifting the position of the centrifugal center of the pump controlsthe volume of the pump I39. 80 that a relatively stable flow of fluid isobtained by this pump I30, we provide the pressure valve I50, which alsocontrols the pump I39 in accordance with the pressure exerted in pipesHI and I5I by the pump vE89. The outline of the complete operation ofour machine is described as follows: Beginning at the neutral positionat which the cam roller B20 is in position A, the tooling member 49 isposiing faces.

tioned to the right away from the tooling member 28. The motor 21 isstarted by pressing the control 28, and the motor rotates the toolingmembers 30 and 40 and also drives the pumps I31 and I30. An un-formedtub is placed in position upon the platform 80 and the handle I20 israised so as to start the reciprocating movement of the rotating toolingmember 49. The cam roller I20 is thereby raised to position B on the camassembly Ill and the reciprocating tooling member 60 moves forward at arapid traverse forward speed until the cam roller I20 falls down intoposition C, which is the position set for the tooling member 48 to meetthe tub 42, and the feed forward operation is instituted.

At the time, that the tooling member 40 meets thetub 02 and starts topress against the tub. the feed forward commences. The rotating toolingmember 63 moves against the tub 42 and the tooling member 39 and exertsa pressure of 1000 pounds against the tub 42 so as to roll or form thetub 42 between the two rotating tooling members 38 and 48 in the shapeoutlined by their head- At the same time that the tooling member 39moves forward at the feed forward speed and pressure, the holding arm 68swings over into position over the tub 2 and in the same swingingmotion, the holding member 50 comes down upon the tub i2 and holds it inproper position while being rolled. As the holding arm 68 swings theelongated gear it turns, which operates the guide rollers Qi and 95 soas to properly align and hold tub 62 while being formed. As the tub s2is being formed by the pressure of the rotating member t9 against therotating tooling member as, the rotation of the two tooling members asand as causes the tub to rotate upon the platform tit and in this waythe tub #32 is formed around the edge of the entire circumference of thetub. The set screw 633 of the delaying mechanism idi is so set that thefeed forward operation is continued until the entire circumference ofthe tub 52 has been properly pressed in form. When the tub has beencompletely formed, the cam roller which has moved from position 0 toposition D during the rolling of the circumference of the tub and isheld in position D until the tub has been completely rolled or formed,it falls down into position E which starts the rapid traverse reverseoperation. During the rapid traverse reverse operation, the rotatingtooling member 39 is reciprocated back and away from the tub 62 at arelatively rapid rate of speed so that the tub may be removed. and atthe same time the holding arm 68 raises the holding memher 06 and theholding arm 68, swings up out of position, thus permitting the formedtub '42 to be taken up oif of the platform 85. At the same time,

that the holding arm 68 swings out of the way of the tub 42, the pistonturns, to as to rotate the elongated gear H, the guide rollers 9i and 94are retracted away from the tub 42 so that the tub 42 is entirelydisengaged and may be freely lifted up ofl of the platform 85. Anothertub to be formed is then placed in the same position on the platform 86and the same process is repeated.

Although we have described our invention with a certain degree ofparticularity, it is understood that the present disclosure has beenmade only by way of example and that numerous changes in the details ofconstruction and the combination and arrangement of parts may beresorted to without departing from the spirit and the We claim as ourinvention:

l. A machine for forming the shape of an article, said machinecomprising, in combination, a pair of mating rotatable tooling membersfor engaging and shaping said article, one of said tooling members beingadapted to be reciprocated relative to the other said tooling member,supporting means for supporting said tooling members, hydraulic meansfor reciprocating said one of said tooling members toward and away fromthe other said tooling member, driving means for rotating said toolingmembers, fluid control.

member so that one of said tooling members is moved into diiferentspaced relationship with respect to the other said tooling member,hydraulic means for reciprocating said one of said supporting members,driving means for rotating said tooling members, a feed trip cam membermounted on said reciprocating supporting member, a guide member adaptedto ride said cam member and to register the change in position of saidcam member, a fluid control valve for controlling said hydraulic means,and connecting means between said ride member and the fluid controlvalve so that the hydraulic means is controlled by the movement of thefeed trip cam member.

3. A machine for forming the shape of an article by rolling a portion ofthe article between rotating mating tooling members, wherein one of saidtooling members is successively reciprocated relative to the othertooling member at a rapid traverse forward movement for bringing thereciprocated tooling member into operating position, at a feed forwardmovement for applying pressure to the article between the toolingmember, and at a rapid traverse reverse movement for moving thereciprocated member out of operating position, comprising, incombination,a first rotating tooling member and a second rotatingtooling member, said tooling members being adapted to engage and presssaid article between them, said second tooling member being adapted tobe reciprocated relative to said first tooling member, a support memberfor supporting each of said tooling members, a piston member forreciprocating said second tooling member, a piston chamber enclosingsaid piston, a holding member for holding said article in position forforming, hydraulic means for moving said holding member in and out ofoperating position, pump means for supplying fluid to said pistonchamber for actuating said piston and reciprocating the second toolingmember and for supplying fluid to said hydraulic means for actuatingsaid holding member, valve means 'for regulating the flow of said fluid,a feed trip cam member carried by the second tooling member so as toreciprocate with the said second tooling member, a guide member adaptedto engage said feed trip cam member 'and to respond to the change ofposition of said feed trip cam member, connecting means between saidguide member and said valve means so that the operation 01' said valvemeans is controlled by the movement of the guide member relative to theca'm member, the arrangement of the second tooling member, the valvemeans,

and the holding member being such that when the second tooling member isin one position the valve means causes the said second tooling membar tobereciprocated at a rapid traverse forward movement and the holdingmember to move into operating position, when in another position thevalve means causes the second tooling member to be reciprocated at afeed forward movement,

and when in another position, the valve means causes the second toolingmember to be reciprocated at rapid traverse reverse movement and theholding member to move out of operating position.

4. A machine for forming the shape of an article by rolling a portion ofthe article between rotating mating tooling members, one of said toolingmembers being reciprocated relative to the other tooling member byhydraulic means, comprising, in combination, a first tooling member, asupporting member'for supporting said first tooling member, a basemounted on said supporting member for supporting the article beingformed, a holding member adapted to engage said article during theforming operation to rise above, and swing away from, the said articlebetween successive forming operations, a second tooling member adaptedto mate with the first tooling member and to engage and form the articleplaced between them, a reciprocating supporting member for supportingsaid second tooling means, hy-

draulic means for reciprocating the said second being such that when thecontrol means is in one position the reciprocating tooling member isreciprocated at arapid traverse forward speed up to the article beingformed, that when the control means is in a second position thereciprocating tooling member is reciprocated at a relatively slow feedforward speed to apply pressure upon the article being formed and theholding member is moved into holding position over the said article, andthat when the control means is in another position the reciprocatingtooling member is reciprocated at a' rapid traverse reverse speed awayfrom the article and the holding member is moved up over, and swingsaway from, the said article.

5. A machine for forming the shape of an article by rolling the articlebetween rotating mating tooling members, one of said tooling membersbeing reciprocated relative to the other tooling member by hydraulicineans, comprising, in combination, a first rotating tooling memberadapted to engage said article, a supporting member for supporting saidfirst tooling member, a base carried by said supporting member forsupporting the said article, a guide roller reciprocally mounted on saidbase for engaging and guiding said article, a holding member forencontrol means responsive to the position of the reciprocating supportmember for oontroiling the hydraulic means reciprocating saidsupporting.

member and the hydraulic means elevating and rotating the hoidingmember, and driving means for rotating said tooling members.

6. A machine for iorming the shape of an article comprising, incombination, a pair of mating rotatable tooling members for engaging andshaping said article, one being reciprocably movable toward and awayfrom the other, a supporting member for each of said tooling members,hydraulic means for reciprocating said movable tooling member toward andaway from the other tooling member, holding means for holding thearticle being shaped, hydraulic means for operating said holding means,fluid control means responsive to the reciprocating movement of thereciprocably movabe tooling member toward and away from the othertooling member, for controlling both said hydraulic means, and drivingmeans for rotating said tooling members.

'I. A machine for forming the shape of an article comprising, incombination, a pair of mating rotatable tooling members for engaging andShaping said article, a supporting member for each of said toolingmembers, one of said supporting members being non-movable and the otherof said supporting members being reciprocably movable toward and awayfrom the said non-movable supporting member, a holding member forengaging the top of said article, said holding member being mounted onthe non-movable supporting member and being adapted to be rotated andmoved vertically relative to the non-movable supporting member, a guideroller reclprocably mounted on said non-movable supporting member forguiding the horizontal movement of said article, the said guide rollerbeing operatively connected to said holding member, hydraulic means forreciprocating the movable supporting member and for operating theholding member and the guide roller, fluid control means responsive tothe reciprocating movement of the movable support member for controllingsaid hydraulic means, and driving means for rotating said matingrotatable tooling members.

8. In combination, a pair of rotatable mating tooling members forengaging and forming an article, one of said tooling members beingreciprocably movable toward and away from the other, supporting meansfor supporting said tooling members, a device carried by said supportingmembers for holding the article being formed, said device includingroller members for supporting said article, a holding member for holdingsaid article down in operative position, a guide roller for horizontallyguiding the article into operative position, and hydraulic means foropcrating said holding member and said guide roller, other hydraulicmeans for reciprocating the movable tooling member, driving means forrotating,

the said tooling members, and fluid control means for controlling thepiurality of hydraulic means, the said fiuid control means beingresponsive to the operating condition of said reciprocating toolingmember.

9. The combinationoi a pair of rotatable mating tooling members forengaging and forming an article, one oi said tooling members beingreciprocably movable toward and away from the other, a supporting memberfor supporting the said tooling members, hydraulic means for supportingand for reciprocating said movable tooling member, driving means forrotating said tooling members, securing means for securing said articlein forming positions, said securing means being mounted on saidsupporting member and being adapted to be moved into and out oi securingposition, hydraulic means for operating the sad securing means, andfluid control means re sponsive to the operating condition of the movabe tooling member for controlling and synchronizing the hydraulic meansreciprocating the movable tooling member and the hydraulic meansoperating ihe said securing means.

10. A device for holding an article being formed between a pair ofrotative mating tooling members mounted upon a frame, one of the toolingmembers being reciprocably movable toward and away from the othertooling member for exerting pressure upon the article so as to form saidarticle endvfor releasing the article after being formed, comprising, incombination, a platform for accommodating said article, a plurality of.

supporting said article, a holding member for holding said article downin forming position, said holding member including an upright membercarried by said frame, an arm member secured to said upright member, andan article engaging member secured to said arm member, the said holdingmember being adapted to be raised. and lowered and rotated so that thesaid article may be placed in and out of forming position, connectingmeans between said upright member and said guide rolllers so that saidguide rollers are reciprocated as said upright member is rotated,hydraulic meansfor operating said holding member, and fluid controlmeans responsive to the movement of the movable tooling member forcontrolling said hydraulic means, the comination of the movable toolingmember, the fluid control means, and the holding member being such thatthe holding member is lowered and rotated toward the said article whenthe movable tooling member is moved toward the other tooling member andbeing such that the'holding member is raised and rotated away from thesaid article when the movable tooling member is moved away from theother tooling member.

11. A device for holding an article being formed by a rolling machinecomprising, in combination, a plurality of roller members for supportingsaid article and for permitting said article to rotate during theforming operation, a guide member for guiding the horizontal movement ofsaid article being formed, a holding member for controlling the verticalmovement of said article, connecting means between said holding memberand said guide member for operating said guide member with the operationog said holding member, supporting means for said roller members, saidguide member, and said holding member, operating means for operatingsaid holding member, and control means responsive to the operatingcondition of said rolling machine for controlling said operating means.

'12. A machine for forming the shape oi an article, said machinecomprising, in combination, a pair of mating tooling members forengaging and shaping said article, supporting members, for supportingsaid tooling members, one of said supporting members being adapted to bereciprocated relative to the other said supporting member so that one01' said tooling members is moved into difierent spaced relationshipwith respect to the other said tooling member, hydraulic meansforreciprocating said one of said supporting members, a feed trip cammember mounted on said reciprocating supporting member, a guide memberadapted to ride said cam member and to register the change in position01' said cam memher, a fluid control valve for controlling said hy-1draulic means, and connecting means between said ridemember and thefluid control valve so that the hydraulic means is controlled by themovement of the feed trip cam member.

13. A device for holding an article having portions being formed by aforming machine in which said article is rotated, said machine havingfluid control means responsive to-the operating position of saidmachine, comprising, in combination,

a supporting member for supporting said article, a holding memberadapted to engage said article and to hold it in operating position onsaid supporting member to permit rotation of said article, hydraulicmeans for moving said holding member ward and away from said article sothat said article may be replaced on said supporting member, saidhydraulic means being responsive to the said fluid control means, andmeans for supporting said supporting member and said holding member.

14. A device for holding an article being formed by a forming machine,said machine having fluid control means responsive to the operatingposition of said machine,-comprising, in combination, a supportingmember for supporting said article, rollers on said supporting memberfor permitting said article to move on said supporting member,

guide members carried by said supporting mem-- her for engaging andguiding said article into operating position, a holding member forengaging and holding said article in operating position on saidsupporting member, hydraulic means for moving said holding member towardand away from said article so that said article may be replaced, meansresponsive to said hydraulic means for rotating said holding membertoward and away from said article as said holding member is moved, saidhydraulic means being responsive to said fluid control means, and meansfor supporting said device on said machine.

15. A device for holding an article being formed by mating rotatabletooling members of a forming machine, said machine being operable byhydraulic means responsive to fluid control means controlled by theoperating position of said machine, comprising, in combination, aplatform carried by said machine, rollers carried by said pia'tformfor-supporting said article and for permitting said article to rotate asit is being formed,

- rotative guide members carried by said platform for guiding anddirecting the movement of said article being formed, a holding membercarried by said machine for holding said article down in formingposition between said tooling members,

hydraulic means responsive to the said fluid con-- trol means of themachine for vertically moving said holding member, and means responsiveto the vertical movement of the holding member for rotating said holdingmember, the arrangement of the holding member, the hydraulic means forvertically moving the holding member, and the means for rotating theholding member being such that the-holding member is'rotated toward andmoved down upon the said article to hold the article during the formingoperation and is rotated away from and moved up-from the said articleafter completion of the forming operation.

JOSEPH D. KREIS.

ELBMERE W. McKIIiNEY.

